Table of Contents
Base fertilizer (base fertilizer) application:
Base fertilizer, commonly called basal fertilizer, is a fertilizer applied before sowing or transplanting. When ploughing, the organic fertilizer is evenly applied, and the fertilizer is turned into the soil along with the ploughing. This method is simple and easy to operate and can achieve a good purpose of improving the soil, but it cannot be applied evenly to the soil. All or even most of them are in contact with the root system and are used by the root system. Therefore, the utilization rate of fertilizer is bound to cause excess waste and certain economic losses, and secondly, it is easy to produce soil obstacles. Therefore, this method is more suitable for crops with a high planting density.
Top dressing application:
There are two methods of applying organic fertilizers as top dressing: deep soil application and external top dressing. In deep soil application, organic fertilizer is generally applied near the dense layer of the root system and covered with soil after application to avoid nutrient volatilization loss. Topdressing outside the roots is to mix the compost with 10 times of water evenly, take the supernatant after standing, and spray the fertilizer solution on the leaves of the crops with the help of a sprayer for absorption by the leaves.
As seed fertilizer:
There are many ways to use seed fertilizer, such as seed dressing, seed soaking, strip application, and hole application. Seed dressing is a method of dissolving or diluting the fertilizer with a small amount of water, spraying it on the surface of the seeds, and mixing while spraying, so that the fertilizer solution evenly touches the surface of the seeds, and then sown after drying in the shade. Seed soaking is to dissolve or dilute the fertilizer solution into a solution of a certain concentration. According to the ratio of 1:10, the seeds are soaked in the solution for 12 to 24 hours, so that the fertilizer solution infiltrates the seed coat with water, and is sown immediately after drying in the shade. After ditching or digging holes, apply fertilizer into the trenches and holes of 3~5cm in the plough layer, and then sow seeds near the fertilizer belt. It is required to release nutrients quickly when used as a seed fertilizer, and it should not be too acidic or too alkaline. The fertilizer itself has no toxic effect on seed germination. The fully decomposed organic fertilizer after composting is a good seed fertilizer.
Used as seedling fertilizer:
Fully decomposed organic fertilizer, with uniform distribution and comprehensive nutrients, is an ideal fertilizer for seedlings. Generally, 10% fully fermented organic fertilizer is added with a certain amount of peat, fly stone or perlite, and the soil is mixed evenly as a seedling substrate.
Organic fertilizer full-layer fertilization and concentrated fertilization:
Full-layer application is to spread organic fertilizer all over the surface and apply an organic fertilizer to the whole soil layer through cultivated land. This fertilization method can be applied when there are more organic fertilizers (4000~6000kg per mu) or when the crop density is high. Concentrated application into the soil is to apply compost near the root system of the crops by ditching. This fertilization method is worth adopting when there is less fertilizer (1500~3000kg per mu) and soil fertility is relatively low.